EP0717392A4 - Verfahren und vorrichtung zur kodierung, dekodierung und kodierung-dekodierung - Google Patents

Verfahren und vorrichtung zur kodierung, dekodierung und kodierung-dekodierung

Info

Publication number
EP0717392A4
EP0717392A4 EP95918771A EP95918771A EP0717392A4 EP 0717392 A4 EP0717392 A4 EP 0717392A4 EP 95918771 A EP95918771 A EP 95918771A EP 95918771 A EP95918771 A EP 95918771A EP 0717392 A4 EP0717392 A4 EP 0717392A4
Authority
EP
European Patent Office
Prior art keywords
decoder
encoder
encoding
decoding method
decoding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95918771A
Other languages
English (en)
French (fr)
Other versions
EP0717392A1 (de
EP0717392B1 (de
Inventor
Masahito Mori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of EP0717392A1 publication Critical patent/EP0717392A1/de
Publication of EP0717392A4 publication Critical patent/EP0717392A4/de
Application granted granted Critical
Publication of EP0717392B1 publication Critical patent/EP0717392B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/002—Dynamic bit allocation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • G10L19/0208—Subband vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
EP95918771A 1994-05-25 1995-05-23 Verfahren und vorrichtung zur kodierung, dekodierung und kodierung-dekodierung Expired - Lifetime EP0717392B1 (de)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP11125794 1994-05-25
JP111262/94 1994-05-25
JP111257/94 1994-05-25
JP11126294 1994-05-25
JP11126294 1994-05-25
JP11125794 1994-05-25
PCT/JP1995/000989 WO1995032499A1 (fr) 1994-05-25 1995-05-23 Procede de codage, procede de decodage, procede de codage-decodage, codeur, decodeur et codeur-decodeur

Publications (3)

Publication Number Publication Date
EP0717392A1 EP0717392A1 (de) 1996-06-19
EP0717392A4 true EP0717392A4 (de) 1998-04-15
EP0717392B1 EP0717392B1 (de) 2001-08-16

Family

ID=26450688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95918771A Expired - Lifetime EP0717392B1 (de) 1994-05-25 1995-05-23 Verfahren und vorrichtung zur kodierung, dekodierung und kodierung-dekodierung

Country Status (5)

Country Link
US (1) US5758315A (de)
EP (1) EP0717392B1 (de)
KR (1) KR960704300A (de)
DE (1) DE69522187T2 (de)
WO (1) WO1995032499A1 (de)

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JP3491425B2 (ja) * 1996-01-30 2004-01-26 ソニー株式会社 信号符号化方法
KR100261254B1 (ko) * 1997-04-02 2000-07-01 윤종용 비트율 조절이 가능한 오디오 데이터 부호화/복호화방법 및 장치
CN1163891C (zh) * 1998-02-17 2004-08-25 松下电器产业株式会社 图像和/或声音记录装置
JP3515903B2 (ja) * 1998-06-16 2004-04-05 松下電器産業株式会社 オーディオ符号化のための動的ビット割り当て方法及び装置
JP3352406B2 (ja) * 1998-09-17 2002-12-03 松下電器産業株式会社 オーディオ信号の符号化及び復号方法及び装置
CA2368453C (en) * 1999-04-16 2009-12-08 Grant Allen Davidson Using gain-adaptive quantization and non-uniform symbol lengths for audio coding
US6871180B1 (en) 1999-05-25 2005-03-22 Arbitron Inc. Decoding of information in audio signals
JP4242516B2 (ja) * 1999-07-26 2009-03-25 パナソニック株式会社 サブバンド符号化方式
JP4287545B2 (ja) 1999-07-26 2009-07-01 パナソニック株式会社 サブバンド符号化方式
JP2001094433A (ja) * 1999-09-17 2001-04-06 Matsushita Electric Ind Co Ltd サブバンド符号化・復号方法
AUPR433901A0 (en) * 2001-04-10 2001-05-17 Lake Technology Limited High frequency signal construction method
US7447631B2 (en) * 2002-06-17 2008-11-04 Dolby Laboratories Licensing Corporation Audio coding system using spectral hole filling
US6845360B2 (en) 2002-11-22 2005-01-18 Arbitron Inc. Encoding multiple messages in audio data and detecting same
US7318035B2 (en) * 2003-05-08 2008-01-08 Dolby Laboratories Licensing Corporation Audio coding systems and methods using spectral component coupling and spectral component regeneration
US20050010396A1 (en) * 2003-07-08 2005-01-13 Industrial Technology Research Institute Scale factor based bit shifting in fine granularity scalability audio coding
US7620545B2 (en) * 2003-07-08 2009-11-17 Industrial Technology Research Institute Scale factor based bit shifting in fine granularity scalability audio coding
US7283968B2 (en) 2003-09-29 2007-10-16 Sony Corporation Method for grouping short windows in audio encoding
US7426462B2 (en) * 2003-09-29 2008-09-16 Sony Corporation Fast codebook selection method in audio encoding
US7349842B2 (en) * 2003-09-29 2008-03-25 Sony Corporation Rate-distortion control scheme in audio encoding
US7325023B2 (en) * 2003-09-29 2008-01-29 Sony Corporation Method of making a window type decision based on MDCT data in audio encoding
CN101086845B (zh) * 2006-06-08 2011-06-01 北京天籁传音数字技术有限公司 声音编码装置及方法以及声音解码装置及方法
KR101078378B1 (ko) * 2009-03-04 2011-10-31 주식회사 코아로직 오디오 부호화기의 양자화 방법 및 장치
CN103544957B (zh) * 2012-07-13 2017-04-12 华为技术有限公司 音频信号的比特分配的方法和装置
US20150025894A1 (en) * 2013-07-16 2015-01-22 Electronics And Telecommunications Research Institute Method for encoding and decoding of multi channel audio signal, encoder and decoder
US10468036B2 (en) * 2014-04-30 2019-11-05 Accusonus, Inc. Methods and systems for processing and mixing signals using signal decomposition

Citations (2)

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Publication number Priority date Publication date Assignee Title
EP0457391A1 (de) * 1990-05-14 1991-11-21 Koninklijke Philips Electronics N.V. Codierverfahren und Codieranordnung mit einem Unterbandcoder und Sender mit der Codieranordnung
WO1993014492A1 (en) * 1992-01-17 1993-07-22 The Massachusetts Institute Of Technology Method and apparatus for encoding, decoding and compression of audio-type data

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FR2389277A1 (fr) * 1977-04-29 1978-11-24 Ibm France Procede de quantification a allocation dynamique du taux de bits disponible, et dispositif de mise en oeuvre dudit procede
JPS6046859B2 (ja) * 1977-10-11 1985-10-18 ソニー株式会社 可変長符号化直列伝送方法
JPS6027459A (ja) * 1983-07-22 1985-02-12 Sumitomo Metal Ind Ltd 通電ロ−ル及び鋳片の溶損防止装置
DE3688980T2 (de) * 1986-10-30 1994-04-21 Ibm Verfahren zur Multigeschwindigkeitskodierung von Signalen und Einrichtung zur Durchführung dieses Verfahrens.
JP2867591B2 (ja) * 1990-04-26 1999-03-08 ソニー株式会社 記録レーザビームの制御方法
JPH0411325A (ja) * 1990-04-27 1992-01-16 Sony Corp 光ディスク記録装置
JP3011447B2 (ja) * 1990-09-20 2000-02-21 三洋電機株式会社 帯域分割符号化装置
JP2833212B2 (ja) * 1990-11-29 1998-12-09 松下電器産業株式会社 帯域分割符号化のビット割当方法
EP0520068B1 (de) * 1991-01-08 1996-05-15 Dolby Laboratories Licensing Corporation Kodierer/dekodierer für mehrdimensionale schallfelder
US5495552A (en) * 1992-04-20 1996-02-27 Mitsubishi Denki Kabushiki Kaisha Methods of efficiently recording an audio signal in semiconductor memory
JPH06180948A (ja) * 1992-12-11 1994-06-28 Sony Corp ディジタル信号処理装置又は方法、及び記録媒体
JP3173218B2 (ja) * 1993-05-10 2001-06-04 ソニー株式会社 圧縮データ記録方法及び装置、圧縮データ再生方法、並びに記録媒体
US5581653A (en) * 1993-08-31 1996-12-03 Dolby Laboratories Licensing Corporation Low bit-rate high-resolution spectral envelope coding for audio encoder and decoder

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
EP0457391A1 (de) * 1990-05-14 1991-11-21 Koninklijke Philips Electronics N.V. Codierverfahren und Codieranordnung mit einem Unterbandcoder und Sender mit der Codieranordnung
WO1993014492A1 (en) * 1992-01-17 1993-07-22 The Massachusetts Institute Of Technology Method and apparatus for encoding, decoding and compression of audio-type data

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
BEATON R J: "HIGH QUALITY AUDIO ENCODING WITHIN 128 KBIT/S", PROCEEDINGS OF THE PACIFIC RIM CONFERENCE ON COMMUNICATIONS, COMPUTERS AND SIGNAL PROCESSING, VICTORIA, JUNE 1 - 2, 1989, no. -, 1 June 1989 (1989-06-01), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 388 - 391, XP000077509 *
DO-HUI TEH ET AL: "SUBBAND CODING OF HIGH-FIDELITY QUALITY AUDIO SIGNALS AT 128 KBPS", SPEECH PROCESSING 2, AUDIO, NEURAL NETWORKS, UNDERWATER ACOUSTICS, SAN FRANCISCO, MAR. 23 - 26, 1992, vol. 2, 23 March 1992 (1992-03-23), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 197 - 200, XP000356971 *
LOKHOFF G C P: "PRECISION ADAPTIVE SUBBAND CODING (PASC) FOR THE DIGITAL COMPACT CASSETTE (DCC)", PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS (ICCE), ROSEMONT, JUNE 2 - 4, 1992, no. CONF. 11, 2 June 1992 (1992-06-02), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 174/175, XP000369225 *
See also references of WO9532499A1 *

Also Published As

Publication number Publication date
WO1995032499A1 (fr) 1995-11-30
EP0717392A1 (de) 1996-06-19
DE69522187T2 (de) 2002-05-02
KR960704300A (ko) 1996-08-31
EP0717392B1 (de) 2001-08-16
US5758315A (en) 1998-05-26
DE69522187D1 (de) 2001-09-20

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